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Flotation device and method for removing free carbon in silicon carbide powder

A technology of silicon carbide powder and flotation device, which is applied in flotation, solid separation and other directions, can solve the problems of poor device stability, reduced flotation efficiency, and high labor intensity, and achieves convenient operation, improved flotation efficiency, and reduced labor. the effect of strength

Active Publication Date: 2015-12-09
连云港龙塔研磨材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flotation time used in this flotation method is long, the cost is high, and the flotation efficiency is reduced, and the manual salvage is labor-intensive and time-consuming.
Although similar technologies appear in existing patents, these devices have poor stability and low flotation efficiency

Method used

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  • Flotation device and method for removing free carbon in silicon carbide powder
  • Flotation device and method for removing free carbon in silicon carbide powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, with reference to figure 1 and figure 2 , a flotation device for removing free carbon in silicon carbide powder, comprising a tank body 1 and a stirring device 10 arranged in the tank body 1, the stirring device 10 is connected to the tank body 1 through a fixing frame 13 on the top of the tank body 1 Then, the top of the tank body 1 is provided with a material inlet, the bottom of the tank body 1 is provided with a material outlet 12, and the tank body 1 between the material outlet 12 and the stirring device 10 is provided with a bubble generator 11, and the tank near the material inlet A foam scraping device is provided between the inner wall of the body 1 and the stirring device 10, and the foam scraping device includes a foam collection tank 2 arranged radially along the tank body 1 and a rotating scraper 3 matched with the foam collection tank 2. The scraper 3 is arranged on one side of the foam collection tank 2, the outer end of the foam collectio...

Embodiment 2

[0024] Embodiment 2, the flotation device for removing free carbon in silicon carbide powder described in embodiment 1: a rotating guiding mechanism is provided between the rotating seat 4 and the fixed seat 5, and the rotating guiding mechanism includes a fixed The annular guide rail 7 on the seat 5 and the roller 6 that cooperates with the annular guide rail 7, the roller 6 is contained on the rotating seat 4, improves the stability of the whole device, makes the rotation of the rotary scraper more flexible.

Embodiment 3

[0025] Example 3, the flotation device for removing free carbon in silicon carbide powder described in Example 2: four rollers 6 are provided, which are evenly distributed along the circumference of the rotating base 4 to ensure the stability of the rotating base.

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Abstract

The invention relates to a flotation device and method for removing free carbon in silicon carbide powder. The device comprises a tank and a stirring device. The stirring device is connected with the tank through a fixed frame. A material inlet is arranged at the top of the tank, and a material outlet is arranged at the bottom of the tank. A foam scraping-away device is arranged at the position, between the inner wall of the tank and the stirring device, close to the material inlet, and comprises a foam collecting tank arranged in the radial direction of the tank and a rotary scraping plate matching the foam collecting tank. The outer end of the foam collecting tank is connected with the side wall of the tank, and a foam output opening is formed in the connecting position. The inner end of the foam collecting tank is connected with a fixed seat at the bottom of the fixed frame. A rotary seat is arranged on the fixed seat and provided with the rotary scraping plate. The foam collecting tank and the rotary scraping plate are arranged, so that foam with free carbon on a liquid face is removed smoothly in time, and flotation efficiency is improved. The foam output opening is arranged, so that automatic discharge is achieved. The rotary seat is arranged to avoid dead corner scraping. A power mechanism is arranged, so that the automation degree is high, good stability is achieved, and the flotation efficiency is improved.

Description

technical field [0001] The invention relates to the field of silicon carbide processing, in particular to a flotation device and method for removing free carbon in silicon carbide powder. Background technique [0002] In the production process of existing silicon carbide powder, some free carbon will remain due to incomplete reaction, which will reduce the purity of silicon carbide powder. Therefore, it is necessary to purify silicon carbide powder. The existing purification method generally adopts flotation. [0003] At present, the domestic silicon carbide flotation method is to place the silicon carbide powder to be floated in a reaction tank, add acid and alkali to the reaction tank, and stir while inflating from the bottom of the reaction tank. With the extension of the reaction time, The free carbon will adhere to the surface of the foam, float to the liquid surface with the foam, and then manually salvage the foam on the liquid surface together with the free carbon t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/14B03D1/02
Inventor 郭世杰
Owner 连云港龙塔研磨材料有限公司
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